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Finding the Fourth Proportional to 123,209.68, 170,027.40 and 69,494.80

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Solution

The fourth proportional to 123,209.68, 170,027.40 and 69,494.80 is: 95,901.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,209.68 : 170,027.40 = 69,494.80 : x
  2. Step 2: Convert to fraction form
    123,209.68/170,027.40 = 69,494.80/x
  3. Step 3: Cross multiply
    123,209.68x = 170,027.40 × 69,494.80
  4. Step 4: Simplify right side
    123,209.68x = 11,816,020,157.52
  5. Step 5: Solve for x
    x = 11,816,020,157.52/123,209.68
  6. Step 6: Final answer
    x = 95,901.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.